{"id":"subnet-primary-range-expand-not-shrink","text":"Primary IPv4 subnet ranges can be expanded but never shrunk after creation.","truth_value":"IN","source":"entries/2026/03/10/vpc-subnets.md","source_url":"","source_hash":"0a93f184ecf6ad03","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"subnet-primary-range-expand-not-shrink","truth_value":"IN","reason":"premise"}]}}